Automobile-lamp.



- P. o. AVERY AUTOMOBILE LAMP. l APPLICATION FILED FEB. 4, 1911.

Patented May 21, 1912.

tomobileeLamps, of which the ,following `To all 'whom it mcy concern:

citizen of the vUnited States,

= and State' of Wisconsin,

" 'STATES-PATENT OFFICE.

:,eEncnrc.l AVERY, or MILWAUKEE, wIscoNsIN'.

AUTOMOBILE-Emir.

Spe'cication of Letters Patent. PafentedMyZl, 1912. Application led February 4, 1.911.l Serial No. 606,594.

Be it known that I, BERCY. C. AVERY.,k a

Milwaukee, in the county of Milwaukee have invented certain new `and useful Improvements in -Aua specification.

. which are used on automobiles, and for similar purposes.

My invention relates in general to lamps, and more particularly to the type of lamps ',It'is desirable that the casing of lamps should be air tight andsecurely closed so y tarnish disclosed may be as to prevent the ingress of foreign matter, such. as dust and moisture, which would or dull the reflecting surface. Heretofore it has been impossible to provide lamps, such, as those used on automobiles, with dust proof'casings owing to the necessity of access being had to the interior of the'casing to light'the lamp", as in cases of oil or gas lamps, or to renew the incandescent bulbs .in the case of electric lamps. In order to Vpermit'access to lamps of this .type it is usualto removably secure the glass front to the lamp, so that it may be readily opened to ermit the lamp lto be lighted, or a new mcandescent bulb to be placed therein.

` The primary object to .provide a lamp for automobiles or the like, in which the inclosing casing will be practically air tight, thereby preventing the ingress o foreign matter.

. 'A further object of my invention is to provide an electrical lamp for automobiles and the like, in which the electric bulb may be inserted and removed at the back of the lamp, thereby avoidingthe necessity ofso securingthe glass'front tothe casing that lof m'yinvention is The embodiment of Amy invention herein generally described as comprising a casing, having a reiiectinginterior surface, closed by a' glass front tightly and immovably secured to the casing, the casing,v therethrough of a size having an opening i to permit the insertion orremoval of the incandescentbulb, and a breech block supf porting the .incandescent bulb removably fitting within and tightly closing .the opening in the casing,fthe`surface of the 'block forming a part of face of the lamp casing. v

My invention will "be more residing at portions of in the lugs A *end' of the breech shoulder b when the g sition to close the opening through the casthe inner reiecting sur-` fully disclosed hereinafter with reference to the accompanying drawingin which the same is illustrated and described as embodied in a con- .vement and practical form, uand in which--` Flgure 1 1s a rear elevational view; Fig.`

2, a horizontal sectional view on the'line 2.-2 of Fig. l; and Fig. 3, a view similar to Fig. 2, showing a modification.

Similar reference characters are used to designate similar parts in the several figures of the drawing.;

Reference letter A indicates the lamp casi ing which ispreferably made of cast metal,

suc hfor instance, as aluminum. The in terior of the casing is polished to form the reflectlng surface of the lamp. Lugs A and A2 areA cast integrally withfthe casing andare provided with vertical holes therethrough for receiving the usual bifurcated asupporting bracket.

l a and a2 indicatesetscrews for clamping the portions of the supporting bracket withl and `A2. B'is cast integrally with the casing on the rear outer surface thereof.-

' D indicates the glass front of the casing lwhich is' secured to the outer circular edge of the casing inany suitable manner to form a practically air tight union, as by means of a fianged band d. lThe glass `front is permanently secured to ,the casing,v avoiding .the cracks necessarily present when 'the glass'front on a lamp 1s removably f secured to the casing, as is necessary in the usual form ofautomobile lamp.

l opening is formed throu h the casing A concentrically within the4 ange B. breech block E removably ts within the circular flange B and closes the opening through the casing. The o ening through the casing is of a size slight y greater than 4that of the 'incandescent bulb C so that the bulb may be inserted into and removed from the casing through the opening In order thatl a tight-joint may tween the breech block E andthe opening through the casing, -a circular shoulderAv b surrounds the opening and projects slightly within the circular flan e B. A coperating shoulder e is forme around the inner i block which engages the breech block is in poing. Any suitable fastening device, such, for instance, as a vclamp screw may be provided for-'removably securing the breech A circular flange thereby be formed beblock in position within the circular flange so as to close the opening through the casing.

The breech block E is preferably formed with an opening in the center, and is closed by a cap F, secured to the breech block in any suitable manner, as by means of screws. A plug o supporting the incandescent bulb C extends through the breech block and is preferably adjustably supported thereon as by means of exterior Y* an interiorly screw' threaded opening through the breech block, thereby adjustably supporting the incandescent bulb so as to regulate its focus. A clamp nut o serves to lock the block c in any adjusted position. The usual binding posts f and f2 are carried by the cap F to which the Wires of the circuitleading to the incandescent bulb may be conveniently secured. y

In Fig. 3 I have shown a modification of my invention in which the incandescentbulb is removably supported eccentrically of the casing. 4The means for 'supporting the 1ncandescent bulb sov that it may be inserted through and removed from the casing Without removing the glass front-of the casing are the same as above described in connection ,With Figs. l and 2.

From the foregoing description it Will be vobserved that I have invented an improved lamp for automobiles, and for similar uses',

in which the illuminating element may be:

inserted into and removed from the casing Without necessitating the glass front of the casing being made removable, as ,-is the case in the ordinary forms of such lamps, thereby permitting the casing to be at all times so tightly closed as. to prevent the ingress of dust or other foreign matter. AIt Will be further observed, in the specific form of my invention herein disclosed, that the breech block Which supports the illuminating ele-' ment and closes the opening through the casing, through which the illuminating element is inserted and removed, is provided with an inner surface Which forms a portion of the reiiecting inner surface of the casing.

What I claim is:

1. In a lamp, the combination with a single cast metal inclosing casing having an .whereby said light-giving element may be inserted and removed Without opening the glass front and Without detaching the lamp from its supporting bracket.

2. In a single inclosing metal casing having a polscrew threads engagingfaceof the casing, i the light-giving element upon said block.

surface of the lamp,

lamp, the combination with a Vished interior reiecting surface, of means onthe outer surface-of said' casing for supporting the lamp, said casing having an opening therethrough of av size to permit the insertion and removal of a light giving element, and a block for supporting the light giving element fitting Within and closing said opening, the inner surface of said block forming part of the reflecting surface of the lamp.

3. In a lamp, the vcombination with a cast metal inclosing casing having an .interior reflecting'surface and also having an open-,

ing therethrough of a size to permit the insertion andremoval of the light-giving element, of a circular iiange on the outer surface of said casingv surrounding the opening therethrough,'an annular shoulder formed Within said flange by renducing the bore thereof, a block removably fitting Within said circular flange andclosing the opening through the' casing, the inner surface of said block forming a part of the reflecting surface of the lamp, an' annular shoulder formed on 'said block engaging the shoulder within said flange for locating the reflecting surface thereon Hush With the reflecting surand means for supporting 4f. In a lamp,fthe combination with an inclosing casing having anlinterior reiieoting surface and also having anopening therethrough of a `size to'- permit the insertion and removal of the light-givingy element,

said casing comprising va glass front' tightly and immovably secured'thereto, of a block removably fitting Within said opening and tightly closing the same, the inner surface of said block forming part of the reflecting and means for supporting the light-giving element on said block.

' 5. In an electric lamp for automobiles y and the like, the combination With a cast metal inclosing casing having supporting ing therethrough of a size to permit the insertion and removal of thel incandescent bulb, of a circular flange cast integrally on the outer surface of said casing concentri cally around the opening therethrough, a block removably fitting Within said flange and closing the opening through the casing, and means for supporting the incandescent bulb upon said block.

6. In an electric lamp for automobiles and the'like, the combination with a cast aluminum inclosing casing having a polished interior refiecting surface, and also having an bpening therethrough of` a size to permit the insertion or removal of the incandescentbulb, of a circular flange cast integrally With the casing on the outer surface thereof concentric'ally around the opening through the casing, a block removably lugs cast thereon and also having an open- 'opening' through th fitting Within said. flange n. and-A closingl the e casing, .the linner surface of said block being polished toform part of the relie'ctingsurface of the lamp,

and'means for' adjustably supporting the incandescent bulbY upon said block. f

7. In a lamp, the combination with. a cast' metal inclosing casing having an Ainterior reflecting surface and also having an openingtherethrough of asize to permit the in` sertion and removalof a light-giving element, of a block removably ittingwithin' and clo-singthe opening throughsaid'casing, the inner surface ofsaid blockforming a part of the reflecting surface of the lamp,v

an annular shoulder formed on said block engaging a portion of the casing laround said opening for locating'the reflecting surface thereon flush with the reflecting surface of the casing, and means for supporting a light-giving element'upon 'said block.

8. In an electric lampI for automobiles and the like, thev combination with a castl i metal inclosing casing having a supporting lug cast thereon and y also having an opening therethrough of a size to permit the insertion and removal of an incandescent bulb,

xof a shoulder formed integrally With. lsaid casing around theopening therethrough, a block removably' fitting Within and closing thev opening through-the casingiand having aA shoulder thereon engaging' said shoulder -on the casing, and means for supporting theA incandescent bulb upon said block.

9. In' anelectric lamp :for automobiles and the like, the-combination With a castmetal,` casing having an opening therethrough ofa size to permit the insertion and removal of an incandescent bulb, of a' hollowblockvremovably fitting Within and clos- 4ing said openingA through the casing, saidy block comprising a removable cap closing its outer: end, a socket for'the incandescentv bulb projecting through the inner Wall of' said block, flexible electric conductors inclosed Within said block and connecting said socket with terminals projecting through thel block to the exterior thereof, and an incandescent electric bulb supported' by said socket,

10. In an electric lamp for automobiles 'and the like, the combination with a cast `metal inclosing casing having a polished incasing beingprovided With engaging shoul ders for locating the reflecting surface on the block flu-sh With the reflecting interior surface of the casing, a socket projecting throughthe inner Wall of said block, means forladjusting said socket relativel5r to the inner surface of said block, flexible-electric conductors inclosed Within said block and connectmg and an incandescent electric bulb detachably engaging said socket.

' .In'testimony whereof, I. have subscribed my name.

PERCY C. AVERY.

Witnesses:

AGriso. L. Wilkinson,

HENRY A. PARKS:

said socket with terminals projecting e through the block to the eXterior thereof,V 

